Bull block stringup mechanism



Nov. 16; 1943. c. o. BRUESTLE 2,334,601

BULL BLOCK STRING UP MECHANISM Filed March 13, 1942 3 Sheets-Sheet 1 5 F F F I Fa. 5'. J. g I F .L I

/8 H i I {l INVENTOR.

CHEL O. BEUESIZE BY Q L ag d HTTOANEYJ Nov. 16, 1943. c. o. BRUESTLE BULL BLOCK STRING- UP MECHANISM Filed March 13, 1942 3 Sheets-Sheet 2 INVENTOR- CHRL o. BEl/ESTLE BY I A TTORNEYS Nov. 16', 1943. c. o. BRUESTLE BULL BLOCK STRING UP MECHANISM 3 Sheets-Sheet 3 Filed March 13, 1942 INVENTOR. C421. 0. BE'UESTLE BY Q W Patented Nov. 16, 1943 em. 'BLoc Qsmmcnemicimmsir i 'l Y game. isr'ustle; Rahvvay, v. 11,. asslgnor m s'yn'chro Machine Company,{llahvmy, Nil,- a;

This invention is concerned withan improved structure forn'iing'part f the bullor coiler blockv mechanism commonly employed with wire drawing machines by-means of whichthe initial end of the wireqto be drawn is readily attached to the bull or coiler block and which; functions" so as to permit, contrary to-the present practice, the continuous operation oi themachine from the beginning to the end of the formation of the coil. Under the more common practicestoday in-the wire drawing andcoiling art, the initial end of thewire to bedrawn and coiled is attached to the block by means of a clamp having a chain which is in turn secured to the block for the first few turns of wire applied thereto. In accordance with onepractice after a few turns have been wound onto the blockthe machine isstopped, the clamp and'ehainremoved, and ,the end of the wire attached to some available'part of theblock in the case of light wire or to a special dampen the. block in the case of heavywire or wire of high tensile strength. In the latter case at the end of the coiling operation the end of the wire must be retrieved from within the coil beforethe coil can be stripped from the block. This is a time consuming operation which iseliminated by this invention. ,1

r In accordance with this invention a portion of the attached mechanism forms part ofthe bull or coiler block while the remainder. isseparable therefrom in a manner so that it rides upwardly on top. of the coil as the coil is formed. The

result is that this latter portion is exposed and easily removed after the coil is finished.

An important advantage of the arrangement of this invention is that at oncerthe machine is started after the end of the wire is attached the complete coil is formed before it is necessary to again bring itto ,a stop'. h

The full nature and/scope of this invention will be best appreciated by the following detailed description of one embodiment thereof as illustrated in the attacheddrawings.

This invention resides substantially in the combination, constructiomarrangement and relative location of parts, all as will'be described in detail below. j

In the accompanying drawings in which the same reference numerals will be used throughout the various views to show the same or similar Figure 1 is aside elevational view of those parts of a wire drawing machineand coiling or bull block necessary to an illustration or themvention showing the relation of the parts after the-initial end of the wireis attached to the bull block. and the machine is ready to be started:

Figure 2 is a top plan view of the mechanism of Figure 1.;j

Figure 3 is a ,side elevational view similar to that of Eigure'l showing the position'of the parts alter the bull blockhas rotated through about" ninety degrees from its initial position;

Figured is a topplan view of the mechanism of Figure 3 showing the same relationship of p r x Figure 5 is-a view orthebull block correspond ing to that of Figure 4 with some partsflbroken away and some partssshown as a result in section; gFigure 6.18 an enlarged vertical; crow-sectional view-through the portion ofthe .bull block with which this invention is concerned showing how the latching mechanism is held in unlatched position; and

Figures? isaview similarto Figure 6 showing howthe latchis operated into-latch d position. In the drawings: there is illustrated at-l a very small portion of a wire drawing machine 'atthe region or its finishing die.- The finishing die is diagrammatically illustrated at 3 mounted in a suitable die holder 2. The initial end W of the wire is shown projectingthrough the-finishing die." The bull or coiler block driving mechanism in accordance with common practice is mounted within a housing the outline of the top of which is indicated at I. The vertical shaftiorythe block is indicated ati'and mounted on its upper end is the block itself conslstin-gof the vertical tapered portion 5 and the integral radialflange portion-1 illustrating their surfaces merging in the usual fillet 8. Mounted upon the block 'adjacerit the stnpperislotss are the vertical exten'sion rods or bars 9' commonly forming apart of a bull orfcoiler' block. 7 In accordance with this invention a portio of'the tapered cylindrical part 6 crime block is formed oi a longitudinally curved arm llllpivotallymountedonthe bullblock at H. 3 In length the sun In forms a segmerit' ofthe cylindrical surface 6- and in closed position as indicated in Figures} and 4 the arm l0 fits snugly within a similarly shaped opening in-the cylindrical portion 6 and forms a continuationgof. the surface thereof. As indicated in "Figure 1 the lower edge 0! the arm 10 is inclined "at an angle to the axis or the block so that the slot formed-between it and thebull block. is inclined-t0 the'longitudin'al axis of the wire as his coiled thereon. i This serves toovercome any tendency of the wire to be injured in the event that the arm ll does 2,1 1 f if not completely close the opening at its lower edge. This problem is not present at the upper edge of the arm because by the time the wire reaches that elevation it is not under any tension. 7

The free end of the arm III is provided with a verticalT-shaped slot I 2 as appears clearlyin Figure 2 and receives a T-shaped block I3 which I loosely fits therein so as to be freetoslide vertically'in theslot l2. Pivotallymounted at on the block I3 is a link H which in' turn pivot- 1 ally supports a suitable clamp IT on the hOIi-[Q zontal pivot pin It. This combination of supf ports provides a substantially universal motion connection. The clamp I1. may beof any con l struction suitable for the purpose and'adapted lg; to easily receive and firmly grip the initial end again be swung out for attachment to a new end of the wire."

of the wire W as is clear from the drawings.

When the arm I0 is in closed position its slot 4 I2 is in alignment with the vertical slot 6 of similar cross-sectional shape formed in theportion 6 of the block as'is best seen from-Figured Mounted on the upper face of the blocklby means of a'foot'plate' I8 is a vertical standard I9 Which likewise has a T-shaped slot 20 formed throughout the length thereof. v The' standard I9 .is attached in-place so that its slot 20" is-in alignment with-the slot 6. Thus the sl'ots l2, 6 and 20 provide a continuous vertical channel open at one side in which the T-shaped block [3 may freely slide. i V

Pivotally mounted within the block on a pivot pin 22 is a latch 2| which isnormally'latched upwardly by a spring 23 (see Figure 6-). "The latched end is positioned so that it may project upwardly into the lower end of theslotIZbut 5 is caused to be ejected" therefrom by means of the block l3 when it is in its initial or lowermost position. T In order to thread or string up a device'iconstructed in accordance with this invention the 40 bull .or coiler block is positioned with respect to thefinishing die, as indicated-in Figures l and 2, so that when the arm Illis in extended 'position it points towards the finishing die 3. The I block I3 with attached parts "is mounted in the T-shaped slot I2. The. initial end of the wire W projects through the finishing die '3 sufliciently so that it may be securely attached in the clamp IT. The machine is then operated-so that'the block rotates in a counterclockwise direction 0 (Figure 2).. Upon the first quarter'turn offthe block thearm I0 moves from extended position into the opening in the portion 6 of theblock to the position shown in Figures 3 and 4 where its outer. face is flush with the surface of the portion 6 and forms a continuation thereof. At this time the latch 2| is in thev position as shown in Figure 6, being held there by the weight of the block l3 and attached parts; Further rotation of the block causes the wire W to be'drawn around it so that ultimately, in accordance with usual practice,the wire engages the blockzinthe fillet 8 and each succeeding turnforces the; pre-. ceding turnsupwardly ahead of it, as. will be clear from Figure '7. As the initial turnis forced 5 upwardly, being in engagement with the lower surface of the block I3, it causes it to move'slowly upwardly in the T-shaped passage I2 6 20. After very little vertical movement of the block I3, latch I2 is freed so that the spring 23 may move it into latched position in the lower end-of slot I2, and thereby lock the arm |0-in ,closed position until released. As the coil builds lip the block I3 with'atta-ched parts rides slowly upwardly onthe standard I9 so as to-approach the '3 top thereof at the time a full coil has been completed. I

At the end of the formation of the coil the machine isstopped and the initial end of the 'wire is removed from the clamp I! very quickly and easily because of the fact that the clamp is in an exposed position. This is contrary to the same prior practice where it is necessary to reach down inside of the coil to release the end of the wire. After the wire is releasedthe block l3 with attached parts is lifted out of the upper end of the slot 20 and the completed coil may then be strippedfrom the machine in accordance with the usual, practice. When the block is put back into the slot andmoved to the lower endthereof it releasesithelatch 2| so that the arm Hi can The mechanism of this invention is particularly adapted tothe handling of heavy wire sizes, and especially heavy wiremade of steel, such as high carbon steel. The handling of heavy high carbon steel'wire is a difilcult task at best, but the structure of this invention greatly facilitates the operation of drawing and coiling wires of this nature.

' With the usual chain and clamp arrangement the surface of the drawing portion of thebl ock becomes scored which is, of course, undesirable. It will be apparent that by reason of the construction herein disclosed; there is'no longer any danger of scoring the drawing face of the block.

As will be readily appreciated by those skilled inthis art, the novel subject matter of this invention is capable of embodiment in other physical forms representing structural modifications of that employed for purposes of illustration.

Those skilled in this art will appreciate that this mechanism is not necessarily limited in its use to the handling of steel wires or even wires of nonferrous materials, but is capable of application in the handling of strands of various materials and of various cross-sections.

I 'do not, therefore, desire to be strictly limited to the single embodiment of the invention as disclosed herein, but rather by the scope and range of equivalents of the claims appended hereto. T I

What is claimed is:

In a strand coilingmechanism the combination including a block having a coil receiving portion, an arm pivotally mounted on the block and forming in closed position a part of the coil receiving portion, a slot inthe end of said arm, means mounted on the block forming an extension of said slot, and a strand clamping device slidably mounted in said slot and its extension.

2. In a strand coiling mechanism the combination including a block having a coiling portion, an arm pivotally mounted on the block and forming in closed position a part of the coiling portion, a slot in the end of said arm,- -means mounted on the block forming an extension of said slot, astrand clamping device slidably mounted in said slot and its extension, and means for locking said arm in closed position.

3. In a strand coiling mechanism the combination including a block having a coiling portion, an arm pivotally mounted on the block and forming in closed position a partof the coiling portion, a slot in the end of said arm, means mounted on the block forming an extension of said slot, a strand clamping device slidably mounted in said slot and its extension, and means released by said clamping device as it moves from its initial position for locking the arm in closed position.

4. In a wire coiling machine the combination comprising a block having a cylindrical portion having a radial circumferential flange at one end, the surface of the cylindrical portion and the flange uniting in a fillet, said cylindrical portion having an arcuate recess in the face thereof, a longitudinally curved arm pivotally mounted at one end in the recess and completing the surface of the cylindrical portion when lying in the recess, said arm having a guideway at its free end, means forming a guideway in alignment with the guideway in said arm, and a strand clamping device mounted in the guideway for sliding movement therein.

5. In a wire coiling machine the combination comprising a block having a cylindrical portion having a radial circumferential flange at one end, the surface of the cylindrical portion and the flange uniting in a fillet, said cylindrical portion having an arcuate recess in the face thereof, a longitudinally curved arm pivotally mounted at one end in the recess and completing the surface of the cylindrical portion when lying, in the recess, said arm having a guideway at its free end, means forming a guideway in alignment with the guideway in said arm, a carrier slidably mounted in the guideway, a strand gripping device, and means for pivotally mounting the gripping device on said carrier.

6. In a wire coiling mechanism the combination comprising a cylindrical coiler having a radial circumferential flange at one end, the surface of the cylindrical coiler and the flange uniting in a fillet, said cylindrical coiler having an arcuate recess in the face thereof, a longitudinally curved'arm pivotally mounted at one end in the recess and completing the surface of the cylindrical coiler when lying in the recess, said arm having a guideway at its free end, means forming a guideway in alignment with the guideway in said arm, a carriage slidably mounted in the guideway, a strand gripping device, means for pivotally mounting the gripping device on said carriage, and a latch for locking the arm in the recess.

' CARL O. BRUESTLE.

CERTIFICATE OF CORRECTION. Patent No. 255L601. November 16, 19%.

CARL o. BRUESTLE.

It is hereby certified that the name of the assignee in the above numbered patent was errornously described and specified as 'SYNCHRO MACHINE COMPANY" whereas said name should have been described and specified as SYNCRO MACHINE COMPANY-, as shown by the record of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 21 st day of December, A. D. 19%.

Henry Van Arsdale, (Seal) Acting Commissioner of Patents. 

